Acard ramdisk

[johnchoy]

ACard's ANS-9010 Serial ATA RAM disk
Solid-state storage from another angle

[johnchoy]

I think this will be the fastest of all scratch disk at this moment

[BernardLanguillier]

I think this will be the fastest of all scratch disk at this moment

Probably, but:

- the current tests focus on the usage as the OS disk, I have not seen any PS test result where this was used as a cache,
- for a 32GB device, it ends up being twice more expensive than the X25-E Extreme that is already very fast,
- 32GB of cache is too small for many applications - PTgui does often use twice as much for many average size stitches,
- it remains to be seen what mother boards chipsets are able to tap into the potential of the device. I know that my 1.5 years old Mac Pro didn't show any performance advantage when I tried replacing a raptor by a SSD in theory 50% faster.

So... I am not sure that the value per $ is really there. It might depend on the application but I don't see this as a universal speed booster.

Cheers,
Bernard

[johnchoy]

Probably, but:

- the current tests focus on the usage as the OS disk, I have not seen any PS test result where this was used as a cache,
- for a 32GB device, it ends up being twice more expensive than the X25-E Extreme that is already very fast,
- 32GB of cache is too small for many applications - PTgui does often use twice as much for many average size stitches,
- it remains to be seen what mother boards chipsets are able to tap into the potential of the device. I know that my 1.5 years old Mac Pro didn't show any performance advantage when I tried replacing a raptor by a SSD in theory 50% faster.

So... I am not sure that the value per $ is really there. It might depend on the application but I don't see this as a universal speed booster.

Cheers,
Bernard

And yes, 32 G configuration is expensive and may not worth the money. However, 8 x 2 that is 16G seems reasonable ......especially in my case. I have an additional 8 G (4 x 2) left because of a current system upgrade.

Currently I have 16 G memory installed and dual booting with 2 win x64. One w/ a ramdisk of 13G assigned and the other one w/o a ramdisk. I use the one w/ ramdisk only for ptgui.

I observed that the ptgui temp folder occupied total for around 26 G of space on a project consisting of 93 ( 31 set of 3 exposure for HDR ) images from 1Dmk3 render into a 18000x7000 8bit psb w/ layers. Once the ramdisk (13G) was full, it switched to a raid 0 of a pair of raptor. I didn't monitoring the rendering time, but I felt and estimated it to be less than 2 hrs. Just wonder if I replace the raptors w/ this device of 16 G, time for rendering will be shorten a lot.